Yea and? You really think they are still there because Thrall sent them now? Blizzard doesn't update things so use common sense. They are there because of Garrosh now.

My point, which you missed, was that you were trying to prove someone wrong who was in fact correct. Who knows if the Kor'kron are actually still in Undercity. Like you stated, Blizzard doesn't update things.

She has always, and will continue to, do what is best for her. She always has her own agenda. She hates Garrosh because he leads...not her.

I doubt she wants to be in the spotlight of Horde politics. In fact, it runs entirely counter to her agenda since that would mean the orcs, tauren, trolls, pandaren, and goblins seeing what the Alliance and the blood elves see.

She's pissed at Garrosh because he's now using the Kor'kron to hold the Undercity hostage to ensure Sylvanas follows orders, he's using the Forsaken as meat shields to keep his orcs safe in the Eastern Kingdoms front (and following her taste of what the afterlife has waiting for her, that's no bueno in her book since the Forsaken are her buffer between undeath and the unending hell that is her afterlife), and because he's kind of a huge dick, albeit an arguably-justified one regarding her use of the Val'kyr (the Forsaken questlines leave it intentionally grey as to whether raising undead is a bad thing when you give them the choice of what to do with themselves, including returning to death; though CDev posters have noted that she takes advantage of their momentary confusion in Hillsbrad, there is no overt mind control taking place and they were given the same choice you see other Forsaken making in the starting zone). Further, helping the Rebellion wins her back a little slack and keeps the rebels off her back while they get themselves back in order, leaving her room to pursue her agenda with fewer interruptions/orcish "bodyguards."

All that adds up to her hating him more than she is indifferent to her allies' needs, enough so that she commits the Forsaken to the rebellion, and this is without taking into account the possibility that Garrosh simply full-on pissed her off for the last time by holding the Undercity hostage and demanded she get involved in the war on his behalf.

I doubt she wants to be in the spotlight of Horde politics. In fact, it runs entirely counter to her agenda since that would mean the orcs, tauren, trolls, pandaren, and goblins seeing what the Alliance and the blood elves see.

She's pissed at Garrosh because he's now using the Kor'kron to hold the Undercity hostage to ensure Sylvanas follows orders, he's using the Forsaken as meat shields to keep his orcs safe in the Eastern Kingdoms front (and following her taste of what the afterlife has waiting for her, that's no bueno in her book since the Forsaken are her buffer between undeath and the unending hell that is her afterlife), and because he's kind of a huge dick, albeit an arguably-justified one regarding her use of the Val'kyr (the Forsaken questlines leave it intentionally grey as to whether raising undead is a bad thing when you give them the choice of what to do with themselves, including returning to death; though CDev posters have noted that she takes advantage of their momentary confusion in Hillsbrad, there is no overt mind control taking place and they were given the same choice you see other Forsaken making in the starting zone). Further, helping the Rebellion wins her back a little slack and keeps the rebels off her back while they get themselves back in order, leaving her room to pursue her agenda with fewer interruptions/orcish "bodyguards."

All that adds up to her hating him more than she is indifferent to her allies' needs, enough so that she commits the Forsaken to the rebellion, and this is without taking into account the possibility that Garrosh simply full-on pissed her off for the last time by holding the Undercity hostage and demanded she get involved in the war on his behalf.

Sylvanas also has a soft spot for the Blood Elves. She might be a little peeved at Garrosh throwing away Blood Elf lives too.

This. You've already answered yourself. Lor'themar threatens her to not raise the dead in his voice files.

3 hints to surviving MMO-C forums:
1.) If you have an opinion, someone will say that it is wrong
2.) If you have a source, there will be people who refuse to believe it
3.) If you use logic, it will be largely ignored
Btw: *Tanaan, *Farahlon, *Arakkoa. Not that hard.